Plow



R. M. KELLY.

PLow.

APPLICATION FILED AUG-21.1919.

Patented Jan. 6, 1920.

www@ s@ @Mme ATTORNEY UNITED STATES PATENT OFFICE.

ROBERT MARVIN KELLY, 0F LONGVIEW, TEXAS, ASSIGNOR TO Gr. A. KELLY rPLOW COMPANY, OF LONGVIEW, TEXAS, A CORPORATION 0F TEXAS.

PLOW.

Application filed August 21, 1919.

To all whom t may concern:

Be it known that I, ROBERT M KELLY, a citizen of the United States, residing at Longview, in the county of Gregg and State of Texas, have invented a new `and useful Plow, of which the following is a specification.

kThis invention relates to improvements in plows of the type employing a moldboard and plowpoint or share bolted to a sta-ndard; and is an improvement upon patents numberedl 974,675 and 97 4,676, issued ,to me November 1, 1910.

In said patents I have disclosed improvements for interlocking the plowpoint or share to the standard, consisting oftape-ring projections provided on the top and landside faces of the standard t0 it correspondingly shaped-recesses or sockets of the plowpoint or share, whereby the fastening i bolt which secures the plowpofnt or Share to the standard will be relieved of strain. While the improvements disclosed in said patents have been found to lbe eicient for the purpose indicated, ,furtherl experiment and use have demonstrated the `necessity of an improvement to supplement the Iaction of said elements.

To this end, I now'construct the lower end ofthe frog or `foot of the standard so that it provides or forms a projecting nose, said nose being in the shape of a trapezium in cross section, and having its front wall and one of its side walls beveled downwardly as well as toward the landside face, said nose vcooperating with a correspondingly-shaped recess or socket inthe underside of the plowpoint or share, whereby upon applying the share or point to the frog or foot of the standard, withvsaid nose fitting in said socket, ,and` drawing zin place the lbolt-that connects the plowpoint or share to the standard, the point or share is forced `firmly into place and held .securely while in 1use. v

The invention consists in the novel l.construction hereinafter specifically described,

vand pointed out in the appended 'cl-aims,

VIn the -accompari-ying drawing, which :shows the preferred .embodiment of fin- -vention-d v Figure 1 is :a bottom plan view.ill1istrat ing :the standard 4moldlooard land plowpoint,

4and particu] arly disclosing the mproxedfefm Specication of Letters Patent.

Patented J an. 6, 19.20.

Serial No. 318,972.

terlocking connection between the foot or frog of the standard, and the plowpoint or share;

Fig. 2 ,is a perspective View showing the lower portion ofthe standard and part of the landside, the plowpoint and moldboard being omitted;

Fig. 3 is a perspective view of the plowpoint or share looking at the underside;

Fig. 4 is a longitudinal section on the line in Fig. i;

Fig. 5 is a `transverse section on the line 5-5 of Fig. 4;

.Fig 6 is a plan view on a. somewhat enlarged scale of a portion of the frog or foot lof the standard, the dotted line indicating the beveling of the edge of the frog or foot;

Fig. 7 is a front view on an enlarged scale ofthe frog or foot of the standard showing the shape of the nose;

'Fig'. 8 is la transverse section 8 8' of Fig. 4.

Like numerals of reference designate corresponding rparts inthe several figures of the drawing.

As some of the features disclosed in the drawing are common to the construction of on the line [my former Patent No. 974,67 6, I will use the same `'reference knumerals in referring thereto, making, however, only a general yreference to the old elements.

9 ldesignates the'moldboard, l0 the lower portion ,of the standard, and 1.1 the plow-V .upright landside face 12, Land .the upper curved face 13,.thejlatter being 'known as the -frogor foot of the standard 10.

The plowpoint or share 111 comprises the `usual fblade'portion 22, which 'has at one edge-the depending approximately vertical lla-ndside `plate or 'ange '23. It has -a bolt hole 28, adapted to register with the zbolt hole 29 provided Yin the frog or foot 1'3, and a bolt -27 i-s passed Vthrough the regis :tering -bolt "holeshand is provided at its f lower fendwith a nut for1 securing it in place.

It will be understood thatunless' some provisionl were rvmade for Aliinterlocking`the? plowpoint or share to the frog or. foot of the standard, all the strain would be placed upon `the bolt, which would soon'work loose.

In my former Patent No. 974,676, I provide a tapering projection consisting 'oit' a transversely inclined top portion 15, andan approximately vertical depending portion '16., said" `portions Vbeing spaced ,troinV vthe engage in a socket provided on the underside of the plowpoint or share, said socket consistingV oi:- angularly related portions 25 and' 26. Many years use of this construction has proved its leiiciency for the purpose, though it 4has been demonstrated that yadditional preventive means is vnecessary to insure the absoluteinterlockingogf the plowpoint to the frog or foot ofthel standard,

I and` take up all strain; on the bolt 27 connecting the'plo'wpoint or share to thev'irog or foot of thettandard.'A

In my preiious patents, no provision was v niadel for utilizing' the point orncse 0f the :reg or foot as an interlocking means. f This is provided loi by the present invention, vwhich will now be referred to.

. The 'fron' or foot 13 of thestandarid has front edOfeBO inclined' iorwardl from a the furrow side of thefplow towaidthe landside, and is beveled inwardly or undercut, as indicated by the dottedv lines in Fig.A 6.

` This 'front' edge joins with or lmerges into the inclined side wall 3l of the'nose 32.

This side wall 3l is also'bevele'd inwardly or undercut as vindicatedby the dotted `lines in Fig. 6. The nose is of the construction l shown'clearly in Figs'. 2, l7 and 8, Vand is trapeziuin shaped in cross section, oneV side wallBBlbeing a continuation of the landside face I2 of the standard, and therefore vertical. As previously stated, the other sidewall 3l is inclined. The

top and bottom wallsc, 35 arefcontiiiuations of the'upperand lower facesV of the `frog or foot portionof the standard.

This construction and arrangeinent -pro- ,t videsa nose which has its greatest height or thickness at the landside end andv decreases in height or thickness toward the furrow end,

and moreover presents a construction which decreases inY width toward.:its-frontend The front' wall A36 .oit-thenose Iisinclined -downwardly or undercutp'and .is 4also inclined rearwardly toward its landside end, asshewn in Fig. 6, l 1 l The plowpoi'nt or share 1l isprovided 'on iindersideflwithfan inclined flangeil',

-whichleads from la point-spaced r'oni'the turrow end. of-theplowpoint or shareto a point atvone side-of and in 'advance'oifand spaced 'roin therecesses 25, 26. This iiange is undereutas shown,l and Avhas its innerend continued andibentatan angle, as`- shown at 38, to -orin' one side wall of' a recess or socket lOprovidedV in the plowpoint or-share AJin advance oi the recesses 25, 26. fThe opposite side wall is formed by the landside Harige 23 otpthe plowpoint, and the back or inner wall 39 connects 'the tivo walls '9.3 and 38, thereby defining a socket or recess hav- 1 ing three walls which is designed for the reception ot the nose 32 of the 'frog or Yfoot.

v y J AAThe,wall 38 of said recess or socket is undertrent end of the staa'idard, and adapted to iront bevoled'edge'() of the frog or tootV fitting the flange 37 ,while the beveled edges Vof the wallsl and 36 are caused to engage the'undercut walls 38 andf 39Aojfjtlie socket. Y The lengagefn'ientv 'of thesefeleinents jis-very Vclearly shown in Figsl, et, 5 and S of the drawings. "lVlien the-plowpoint or share ,is tted in place, it is impossible to 1 move it in any direction except forwardly, and resistalice to forward Amovement isftakteircare of bythe engagement 'of the'ibolt.` plowing' `the strain onl the plowpoint lor share' is rearwardly, upwardly and laterally. These strains are all resisted and provided against Eby the interlocking connection -be- :tween the-plowpoint orshare` andthe frog or footof'thejstandard which has been defscribed.

By: the Vconstruction shown, full provision is inade for "relieving'frompstrain the faswtening bolt which connects the plowpoint `-or share to the standard', and yet there is no markedmodification inthe construction of either the plowpoint or share or in the frog or footrot'f the standar'd.- It-requiresl nofskill tov-mount tblrelplowpointor share'ih position lfn'idsueli strains as `the.plowpointV or share maybe subjected' to iare distributed to a '"numberfofpoints and-"not imposed on one 1 part or element. Theuconstruction can'jbe -re'adily' manufactured withoiit any great1 llirfa'plowyfa standard having a frog zium 'shaped incros's secti.oi1,r and 'which tapers toward its 'oiiter 'Lend,said nose being defined by one side."walliivhiclr is afcorfitini1- 1 "ation' et the: lai'id's'ideV I' face of the standard,

another side wall which extends oiitfronr Jthe front edge Foi'the'fro'g:and is inclined Ctoward the landside edge, atopvv wall which is Ya continuation of'ithe uplierifaceoi the rg, and1 a 'bttoin wallwliich isi` :front-inn f provided with a projecting nose ofv trape- Y i Vbeveled inwardly from the top wall to the bottom wall, the second-mentioned side wall being also beveled inwardly from the top of the bottom wall, and a plowpoint having a flange on its underside extending in an inclined line and joined with and forming one wallof a socket provided near the landside edge of the point, said socket having three walls, one of which is the landside flange of the point, the other two walls being under cut and inclined to conform with the Walls of the nose.

2. In a plow, a standard having a frog provided with a front inclined beveled edge, and a projecting nose having its inner side wall inclined and beveled inwardly and merging into the inclined front edge of the frog, said nose being trapezium shaped in cross section having its greatest height or thickness at the landside face of the standard and decreasing in height or thickness toward the other end of the nose, the front wall of said nose being beveled rearwardly and downwardly, and a plowpoint having an inclined flange on its underside with its wall undercut, said flange having an inclined continuation at its end nearest to the landside, which continuation forms one wall of a three-wall. socket, the other walls being provided by the landside flange of the point and by an undercut wall which is shaped to l agree with the front wall of the nose.

3. In a plow, a plowpoint having an i11- clined fiange leading inwardly from the fur,- row end thereof, and having its other end provided with an inclined continuation which forms one side wall of a three-wall socket, said socket having its other side wall provided by the landside flange of the point, a standard having a frog provided with a front inclined edge, and a nose projecting from the frog and having the shape of' a trapezium in cross section, said front edge of the frog fitting the flange of the point while the nose fits the Walls of said socket.

In testimony that I claim the foregoing as my own, I have hereto aliixed my lsignature in the presence of two witnesses.

ROBERT MARVIN KELLY.

W'itnesses:

A. V. GOYNE, S.. H. SALE. 

